Patents by Inventor Pengyue Wen
Pengyue Wen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230083610Abstract: Methods and apparatus to reduce stress on lasers in optical transceivers are disclosed. An apparatus comprising a printed circuit board (PCB) having a first side and a second side opposite the first side; and a first stiffener attached to the first side of the PCB; and a photonic integrated circuit (PIC) attached to the first stiffener. The first stiffener is between the PIC and the PCB. The apparatus also includes a second stiffener attached to the second side of the PCB.Type: ApplicationFiled: September 14, 2021Publication date: March 16, 2023Inventors: Aditi Mallik, Pengyue Wen, Quan Tran, Wendai Wang, Xiaozhong Wang
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Patent number: 9791645Abstract: A heat dissipation system for an optical communications module is provided that includes a cold block on which the optoelectronic components and a lens assembly of an OSA of the module are mounted. The cold block has precisely-controlled mounting surface heights that precisely passively align the lens assembly in directions normal to mounting surfaces of the cold block. The cold block is made of a material of very high thermal conductivity, typically copper, so that heat generated by the optoelectronic components is dissipated into the cold block to maintain the optoelectronic components well below maximum allowable temperatures. In addition, an optical interface device of the OSA has a low-profile and an optical configuration that allows it to be used with a high optical fiber count.Type: GrantFiled: September 30, 2015Date of Patent: October 17, 2017Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: David J. K. Meadowcroft, Robert G. Ritter, Pengyue Wen, Hui Xu
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Publication number: 20170090130Abstract: A heat dissipation system for an optical communications module is provided that includes a cold block on which the optoelectronic components and a lens assembly of an OSA of the module are mounted. The cold block has precisely-controlled mounting surface heights that precisely passively align the lens assembly in directions normal to mounting surfaces of the cold block. The cold block is made of a material of very high thermal conductivity, typically copper, so that heat generated by the optoelectronic components is dissipated into the cold block to maintain the optoelectronic components well below maximum allowable temperatures. In addition, an optical interface device of the OSA has a low-profile and an optical configuration that allows it to be used with a high optical fiber count.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: David J.K. Meadowcroft, Robert G. Ritter, Pengyue Wen, Hui Xu
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Patent number: 9151914Abstract: An optical communication system includes a transceiver with a light source, a transition lens and an optical medium. Each of the light source, the transition lens and the optical medium define a corresponding axis. The light source defines a normal launch axis. The transition lens defines an optical axis. The optical medium defines a longitudinal axis. A relative misalignment from a coaxial alignment of the corresponding axes of at least one the light source, the transition lens and the optical medium is used to reduce a back reflection incident at the light source. Such misalignments can be achieved by one or both of angular adjustments and offsets of the axes.Type: GrantFiled: February 8, 2013Date of Patent: October 6, 2015Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: David Chak Wang Hui, Xiaozhong Wang, Bing Shao, Pengyue Wen
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Patent number: 9036253Abstract: Vertical cavity semiconductor optical amplifiers for various photonic devices including all optical logic gate devices and oscillators, where such devices can be implemented to achieve various advantages, including Boolean inversion at high speeds, low power, workable noise margins for cascadability because of input output isolation, and easy of integration in large arrays.Type: GrantFiled: October 5, 2007Date of Patent: May 19, 2015Assignee: The Regents of the University of CaliforniaInventors: Sadik C. Esener, Haijiang Zhang, Pengyue Wen, Matthias Gross
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Publication number: 20150030281Abstract: Protection features are incorporated into an optical communications module to ensure that the optics system of the module will not be damaged or moved out of alignment by external forces exerted on a mating surface of the module when a connector module is mated with the optical communications module. One protection feature is a strike plate that is disposed on the mating surface of the module that redistributes forces exerted on the mating surface. Another protection feature is an optically-transmissive window formed in the mating surface and comprising an optically-transmissive element having anti-reflection (AR) coatings disposed on its upper and lower surfaces. The optics system is positioned beneath the mating surface so that forces that are exerted on the mating surface are not transferred to the optics system. Another protection feature is a design of the module that mechanically decouples the optics system from the mating surface.Type: ApplicationFiled: July 25, 2013Publication date: January 29, 2015Applicant: Avago Technologies General IP (Singapore) Pte, Ltd.Inventors: Seng-Kum Chan, Bing Shao, Hui Xu, Pengyue Wen, David J.K. Meadowcroft
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Patent number: 8836942Abstract: Various embodiments of machine vision systems, methods, and devices are disclosed for providing passive alignment of an optical component to an electrical device. One embodiment is a method for passively aligning an optical subassembly to an electrical subassembly. One such method comprises: a machine vision system positioning an optical subassembly relative to an electrical subassembly; the machine vision system capturing an image of the optical subassembly; the machine vision system processing the image to identify an alignment member formed on the optical subassembly; and the machine vision system determining a first position of the optical axis of the optical subassembly based on a second position of the alignment member.Type: GrantFiled: September 30, 2010Date of Patent: September 16, 2014Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Albert Khor Wooi Quan, Pengyue Wen
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Publication number: 20140226990Abstract: An optical communication system includes a transceiver with a light source, a transition lens and an optical medium. Each of the light source, the transition lens and the optical medium define a corresponding axis. The light source defines a normal launch axis. The transition lens defines an optical axis. The optical medium defines a longitudinal axis. A relative misalignment from a coaxial alignment of the corresponding axes of at least one the light source, the transition lens and the optical medium is used to reduce a back reflection incident at the light source. Such misalignments can be achieved by one or both of angular adjustments and offsets of the axes.Type: ApplicationFiled: February 8, 2013Publication date: August 14, 2014Inventors: David Chak Wang Hui, Xiaozhong Wang, Bing Shao, Pengyue Wen
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Patent number: 8705975Abstract: An optical transceiver and method for bidirectionally communicating optical signals in an optical transceiver involve an optical element that bidirectionally separates incoming and outgoing optical signals of the same wavelength. The optical element can be a diffractive element such as a grating or, alternatively, a partially reflective element such as a transparent block having a thin-film coating.Type: GrantFiled: February 24, 2011Date of Patent: April 22, 2014Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Ye Chen, Pengyue Wen, Bing Shao
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Patent number: 8547642Abstract: An optics system is provided that is made up of a single diffractive optical element that performs beam collimating, beam splitting, and light blocking functions. The diffractive optical element is made up of a substrate having a first surface comprising an entrance facet and a second surface comprising an exit facet. The first surface comprising the entrance facet performs at least the functions of collimating the beam of light produced by the light source and of tilting the collimated beam in a particular direction. The second surface comprising the exit facet performs at least the functions of splitting the tilted collimated beam into at least two collimated light beams and of blocking unintended light (i.e., one or more mode order groups that are not intended to be used for imaging purposes). By performing all of these functions on different surfaces of a single substrate, an extremely compact optics system having very high optical efficiency and a very high signal-to-noise ratio is realized.Type: GrantFiled: October 22, 2009Date of Patent: October 1, 2013Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Ye Chen, Bing Shao, Pengyue Wen
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Patent number: 8483571Abstract: An optical beam splitter for use in an optoelectronic module and method are provided. The optical beam splitter is configured to split a main beam produced by a laser into at least first and second light portions that have different optical power levels. The first light portion, which is to be coupled into an end of a transmit optical fiber of an optical communications link, has an optical power level that is within eye safety limits and yet has sufficient optical power to avoid signal degradation problems. The optical power level of the first light portion is less than the optical power level of the second light portion. The optical beam splitter is capable of being implemented in a unidirectional or a bidirectional optical link.Type: GrantFiled: June 30, 2010Date of Patent: July 9, 2013Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Laurence R. McColloch, Pengyue Wen
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Publication number: 20120219300Abstract: An optical transceiver and method for bidirectionally communicating optical signals in an optical transceiver involve an optical element that bidirectionally separates incoming and outgoing optical signals of the same wavelength. The optical element can be a diffractive element such as a grating or, alternatively, a partially reflective element such as a transparent block having a thin-film coating.Type: ApplicationFiled: February 24, 2011Publication date: August 30, 2012Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.Inventors: Ye Chen, Pengyue Wen, Bing Shao
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Publication number: 20120175535Abstract: An optical backplane is provided that has at least first and second side walls that are generally parallel to one another and at least one optical relay element disposed on at least one of the parallel side walls. An optical signal is coupled into the optical backplane through an entrance facet of the backplane. The optical signal is maintained within the optical backplane by internal reflection at the parallel side walls of the backplane. The optical relay element receives the optical signal reflected off of one of the side walls and reflects and refocuses the optical signal to guide the optical signal and prevent it from diverging as it propagates through the backplane from the entrance facet to the exit facet.Type: ApplicationFiled: January 10, 2011Publication date: July 12, 2012Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.Inventors: Ye Chen, Ron Kaneshiro, Pengyue Wen
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Publication number: 20120084049Abstract: Various embodiments of machine vision systems, methods, and devices are disclosed for providing passive alignment of an optical component to an electrical device. One embodiment is a method for passively aligning an optical subassembly to an electrical subassembly. One such method comprises: a machine vision system positioning an optical subassembly relative to an electrical subassembly; the machine vision system capturing an image of the optical subassembly; the machine vision system processing the image to identify an alignment member formed on the optical subassembly; and the machine vision system determining a first position of the optical axis of the optical subassembly based on a second position of the alignment member.Type: ApplicationFiled: September 30, 2010Publication date: April 5, 2012Inventors: Albert Khor Wooi Quan, Pengyue Wen
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Publication number: 20120002284Abstract: An optical beam splitter for use in an optoelectronic module and method are provided. The optical beam splitter is configured to split a main beam produced by a laser into at least first and second light portions that have different optical power levels. The first light portion, which is to be coupled into an end of a transmit optical fiber of an optical communications link, has an optical power level that is within eye safety limits and yet has sufficient optical power to avoid signal degradation problems. The optical power level of the first light portion is less than the optical power level of the second light portion. The optical beam splitter is capable of being implemented in a unidirectional or a bidirectional optical link.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.Inventors: Laurence R. McColloch, Pengyue Wen
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Publication number: 20110096382Abstract: An optics system is provided that is made up of a single diffractive optical element that performs beam collimating, beam splitting, and light blocking functions. The diffractive optical element is made up of a substrate having a first surface comprising an entrance facet and a second surface comprising an exit facet. The first surface comprising the entrance facet performs at least the functions of collimating the beam of light produced by the light source and of tilting the collimated beam in a particular direction. The second surface comprising the exit facet performs at least the functions of splitting the tilted collimated beam into at least two collimated light beams and of blocking unintended light (i.e., one or more mode order groups that are not intended to be used for imaging purposes). By performing all of these functions on different surfaces of a single substrate, an extremely compact optics system having very high optical efficiency and a very high signal-to-noise ratio is realized.Type: ApplicationFiled: October 22, 2009Publication date: April 28, 2011Applicant: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Ye Chen, Pengyue Wen, Bing Shao
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Publication number: 20100027104Abstract: Vertical cavity semiconductor optical amplifiers for various photonic devices including all optical logic gate devices and oscillators, where such devices can be implemented to achieve various advantages, including Boolean inversion at high speeds, low power, workable noise margins for cascadability because of input output isolation, and easy of integration in large arrays.Type: ApplicationFiled: October 5, 2007Publication date: February 4, 2010Inventors: Sadik C. Esener, Haijiang Zhang, Pengyue Wen, Matthias Gross
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Publication number: 20090296177Abstract: A diffractive coupling element based on a computer-generated hologram is used in an optical coupling system of a transmitter to control the launch of laser light from a laser light source onto an end of an optical fiber. The diffractive coupling element controls the launch of the laser light such that a desired optical intensity distribution pattern is provided that substantially avoids the center and edge refractive index defects contained in the optical fiber.Type: ApplicationFiled: May 30, 2008Publication date: December 3, 2009Applicant: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Ye Chen, Pengyue Wen